| 摘要 |
In known systems where a missile is tracked by a monopulse radar and is communicated with by another microwave system it is known to use two main reflectors, one for the tracking system and one for the communication system. The invention provides a single main reflector 1 having, at its focal point a feed 6 for the communications system which transmits messages to and receives messages from the missile. A secondary reflector 22 between the reflector 1 and the feed 6 provides the reflector 1 with a second focal point at which a feed 14 belonging to a monopulse tracking system is located. The tracking system and the communication system operate at different frequencies and the secondary reflector 22 is designed so as to transmit frequencies at which the communication system operates and to reflect frequencies at which the tracking system operates. By employing the invention it is possible to avoid the need for two reflectors 1. <IMAGE> |
